Review of solar models and helioseismology

Acoustic modes are a suitable probe to determine the solar interior properties and give constraints on regions of turbulence or mixing. The recent results obtained with the SoHO satellite involve practically all the acoustic modes and are extremely useful to check theoretical assumptions. If turbulence is favoured to explain lithium burning in the tachocline layers located at the base of the convection zone, central turbulent mixing seems to be strongly rejected by the present observations. Nuclear reaction rates are indirectly constrained through the behaviour of the sound speed. So, some puzzling problems on maxwellian distribution or dynamical effects in stellar plasma are enlightened by the accuracy of the present seismic data. We begin to predict neutrino emission fluxes from helioseismology, and propose to use the difference between these emitted neutrino fluxes and neutrino fluxes detected on earth to deduce nu (e) properties.